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path: root/drivers/net/ethernet
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2015-12-06net/mlx4_core: Support the HA mode for SRIOV VFs tooMoni Shoua
When the mlx4 driver runs in HA mode, and all VFs are single ported ones, we make their single port Highly-Available. This is done by taking advantage of the HA mode properties (following bonding changes with programming the port V2P map, etc) and adding the missing parts which are unique to SRIOV such as mirroring VF steering rules on both ports. Due to limits on the MAC and VLAN table this mode is enabled only when number of total VFs is under 64. Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06net/mlx4_core: Keep VLAN/MAC tables mirrored in multifunc HA modeMoni Shoua
Due to HW limitations, indexes to MAC and VLAN tables are always taken from the table of the actual port. So, if a resource holds an index to a table, it may refer to different values during the lifetime of the resource, unless the tables are mirrored. Also, even when driver is not in HA mode the policy of allocating an index to these tables is such to make sure, as much as possible, that when the time comes the mirroring will be successful. This means that in multifunction mode the allocation of a free index in a port's table tries to make sure that the same index in the other's port table is also free. Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06net/mlx4_core: Support mirroring VF DMFS rules on both portsMoni Shoua
Under HA mode, steering rules set by VFs should be mirrored on both ports of the device so packets will be accepted no matter on which port they arrived. Since getting into HA mode is done dynamically when the user bonds mlx4 Ethernet netdevs, we keep hold of the VF DMFS rule mbox with the port value flipped (1->2,2->1) and execute the mirroring when getting into HA mode. Later, when going out of HA mode, we unset the mirrored rules. In that context note that mirrored rules cannot be removed explicitly. Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06net/mlx4_core: Use both physical ports to dispatch link state events to VFMoni Shoua
Under HA mode, the link down event should be sent to VFs only if both ports are down. Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06net/mlx4_core: Use both physical ports to set the VF link stateOr Gerlitz
In HA mode, the link state for VFs for which the policy is "auto" (i.e. follow the physical link state) should be ORed from both ports. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06net: qca_spi: fix transmit queue timeout handlingStefan Wahren
In case of a tx queue timeout every transmit is blocked until the QCA7000 resets himself and triggers a sync which makes the driver flushs the tx ring. So avoid this blocking situation by triggering the sync immediately after the timeout. Waking the queue doesn't make sense in this situation. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 291ab06ecf67 ("net: qualcomm: new Ethernet over SPI driver for QCA7000") Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06Revert "i40e: remove CONFIG_I40E_VXLAN"Singhai, Anjali
This reverts commit 8fe269991aece394a7ed274f525d96c73f94109a. The case where VXLAN is a module and i40e driver is inbuilt will not be handled properly with this change since i40e will have an undefined symbol vxlan_get_rx_port in it. v2: Add a signed-off-by. Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05fm10k: TRIVIAL cleanup order at top of fm10k_xmit_frameJacob Keller
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: TRIVIAL fix typo of hardwareJacob Keller
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: change default Tx ITR to 25usecJacob Keller
The current default ITR for Tx is overly restrictive. Using a simple netperf TCP_STREAM test, we top out at about 10Gb/s for a single thread when running using 1500 byte frames. By reducing the ITR value to 25usec (up to 40K interrupts a second from 10K), we are able to achieve 36Gb/s for a single thread TCP stream test. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: use macro for default Tx and Rx ITR valuesJacob Keller
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: Update adaptive ITR algorithmJacob Keller
The existing adaptive ITR algorithm is overly restrictive. It throttles incorrectly for various traffic rates, and does not produce good performance. The algorithm now allows for more interrupts per second, and does some calculation to help improve for smaller packet loads. In addition, take into account the new itr_scale from the hardware which indicates how much to scale due to PCIe link speed. Reported-by: Matthew Vick <matthew.vick@intel.com> Reported-by: Alex Duyck <alexander.duyck@gmail.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: introduce ITR_IS_ADAPTIVE macroJacob Keller
Define a macro for identifying when the itr value is dynamic or adaptive. The concept was taken from i40e. This helps make clear what the check is, and reduces the line length to something more reasonable in a few places. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: Add support for ITR scaling based on PCIe link speedJacob Keller
The Intel Ethernet Switch FM10000 Host Interface interrupt throttle timers are based on the PCIe link speed. Because of this, the value being programmed into the ITR registers must be scaled accordingly. For the PF, this is as simple as reading the PCIe link speed and storing the result. However, in the case of SR-IOV, the VF's interrupt throttle timers are based on the link speed of the PF. However, the VF is unable to get the link speed information from its configuration space, so the PF must inform it of what scale to use. Rather than pass this scale via mailbox message, take advantage of unused bits in the TDLEN register to pass the scale. It is the responsibility of the PF to program this for the VF while setting up the VF queues and the responsibility of the VF to get the information accordingly. This is preferable because it allows the VF to set up the interrupts properly during initialization and matches how the MAC address is passed in the TDBAL/TDBAH registers. Since we're modifying fm10k_type.h, we may as well also update the copyright year. Reported-by: Matthew Vick <matthew.vick@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: rename mbx_tx_oversized statistic to mbx_tx_droppedJacob Keller
Originally this statistic was renamed because the method of dropping was called "drop_oversized_messages", but this logic has changed much, and this counter does actually represent messages which we failed to transmit for a number of reasons. Rename the counter back to tx_dropped since this is when it will increment, and it is less confusing. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: add statistics for actual DWORD count of mbmem mailboxJacob Keller
A previous bug was uncovered by addition of a debug stat to indicate the actual number of DWORDS we pulled from the mbmem. It turned out this was not the same as the tx_dwords counter. While the previous bug fix should have corrected this in all cases, add some debug stats that count the number of DWORDs pushed or pulled from the mbmem. A future debugger may take advantage of this statistic for debugging purposes. Since we're modifying fm10k_mbx.h, update the copyright year as well. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: explicitly typecast vlan values to u16Jacob Keller
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: Correct typecast in fm10k_update_xc_addr_pfJacob Keller
Since the resultant data type of the mac_update.mac_upper field is u16, it does not make sense to typecast u8 variables to u32 first. Since we're modifying fm10k_pf.c, also update the copyright year. Reported-by: Matthew Vick <matthew.vick@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: reinitialize queuing scheme after calling init_hwJacob Keller
The init_hw function may fail, and in the case of VFs, it might change the number of maximum queues available. Thus, for every flow which checks init_hw, we need to ensure that we clear the queue scheme before, and initialize it after. The fm10k_io_slot_reset path will end up triggering a reset so fm10k_reinit needs this change. The fm10k_io_error_detected and fm10k_io_resume also need to properly clear and reinitialize the queue scheme. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: always check init_hw for errorsJacob Keller
A recent change modified init_hw in some flows the function may fail on VF devices. For example, if a VF doesn't yet own its own queues. However, many callers of init_hw didn't bother to check the error code. Other callers checked but only displayed diagnostic messages without actually handling the consequences. Fix this by (a) always returning and preventing the netdevice from going up, and (b) printing the diagnostic in every flow for consistency. This should resolve an issue where VF drivers would attempt to come up before the PF has finished assigning queues. In addition, change the dmesg output to explicitly show the actual function that failed, instead of combining reset_hw and init_hw into a single check, to help for future debugging. Fixes: 1d568b0f6424 ("fm10k: do not assume VF always has 1 queue") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: reset max_queues on init_hw_vf failureJacob Keller
VF drivers must detect how many queues are available. Previously, the driver assumed that each VF has at minimum 1 queue. This assumption is incorrect, since it is possible that the PF has not yet assigned the queues to the VF by the time the VF checks. To resolve this, we added a check first to ensure that the first queue is infact owned by the VF at init_hw_vf time. However, the code flow did not reset hw->mac.max_queues to 0. In some cases, such as during reinit flows, we call init_hw_vf without clearing the previous value of hw->mac.max_queues. Due to this, when init_hw_vf errors out, if its error code is not properly handled the VF driver may still believe it has queues which no longer belong to it. Fix this by clearing the hw->mac.max_queues on exit due to errors. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05fm10k: set netdev features in one locationJacob Keller
Don't change netdev hw_features later in fm10k_probe, instead set all values inside fm10k_alloc_netdev. To do so, we need to know the MAC type (whether it is PF or VF) in order to determine what to do. This helps ensure that all logic regarding features is co-located. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05sh_eth: read MAC address registers only onceSergei Shtylyov
The code reading the MAHR/MALR registers in read_mac_address() is terribly ineffective -- it reads MAHR 4 times and MALR 2 times, while it's enough to read each register only once. Use the local variables to achieve that, somewhat beautifying the code while at it... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05ravb: read MAC address registers only onceSergei Shtylyov
The code reading the MAHR/MALR registers in ravb_read_mac_address() is terribly ineffective -- it reads MAHR 4 times and MALR 2 times, while it's enough to read each register only once. Use the local variables to achieve that, somewhat beautifying the code while at it... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05bnx2x: simplify distinction between port and func statsMichal Schmidt
The 'flags' field in bnx2x_stats_arr[] serves only one purpose - to tell us if the statistic is a per-port stat and thus should not be shown for virtual functions. It's strange that the field can have three different values. A boolean will do just fine. Also remove IS_FUNC_STAT(). It was used only once and it's in fact just a negation of IS_PORT_STAT(). Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05bnx2x: change FW GRO error message to WARN_ONCEMichal Schmidt
It's supposed to be impossible for TPA to give us anything else than IPv4 or IPv6 here. But in case there is a way to reach this error by some strange received frames, we don't want to flood the kernel log. WARN_ONCE is better for this purpose. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05bnx2x: drop redundant error message about allocation failureMichal Schmidt
alloc_pages() already prints a warning when it fails. No need to emit another message. Certainly not at KERN_ERR level, because it is no big deal if this GFP_ATOMIC allocation fails occasionally. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05sfc: check warm_boot_count after other functions have been resetDaniel Pieczko
A change in MCFW behaviour means that the net driver must update its record of the warm_boot_count by reading it from the ER_DZ_BIU_MC_SFT_STATUS register. On v4.6.x MCFW the global boot count was incremented when some functions needed to be reset to enable multicast chaining, so all functions saw the same value. In that case, the driver needed to increment its warm_boot_count when other functions were reset, to avoid noticing it later and then trying to reset itself to recover unnecessarily. With v4.7+ MCFW, the boot count in firmware doesn't change as that is unnecessary since the PFs that have been reset will each receive an MC reboot notification. In that case, the driver re-reads the unchanged value. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05stmmac: fix resource management when resumeGiuseppe CAVALLARO
There is a memleak when suspend/resume this driver version. Currently the stmmac, during resume step, reallocates all the resources but they are not released when suspend. The patch is not to release these resources but the logic has been changed. In fact, it is not necessary to free and reallocate all from scratch because the memory data will be always preserved. As final solution, the patch just reinit the descriptors and the rx/tx pointers only when resume. Tested done on STi boxes. Reported-by: ZhengShunQian <zhengsq@rock-chips.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05ravb: fix RX queue #1 frame error counter nameSergei Shtylyov
The Rx queue #1 frame error counter name contains trailing underscore, probably due to a typo... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05sh_eth: fix kernel oops in skb_put()Sergei Shtylyov
In a low memory situation the following kernel oops occurs: Unable to handle kernel NULL pointer dereference at virtual address 00000050 pgd = 8490c000 [00000050] *pgd=4651e831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] PREEMPT ARM Modules linked in: CPU: 0 Not tainted (3.4-at16 #9) PC is at skb_put+0x10/0x98 LR is at sh_eth_poll+0x2c8/0xa10 pc : [<8035f780>] lr : [<8028bf50>] psr: 60000113 sp : 84eb1a90 ip : 84eb1ac8 fp : 84eb1ac4 r10: 0000003f r9 : 000005ea r8 : 00000000 r7 : 00000000 r6 : 940453b0 r5 : 00030000 r4 : 9381b180 r3 : 00000000 r2 : 00000000 r1 : 000005ea r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c53c7d Table: 4248c059 DAC: 00000015 Process klogd (pid: 2046, stack limit = 0x84eb02e8) [...] This is because netdev_alloc_skb() fails and 'mdp->rx_skbuff[entry]' is left NULL but sh_eth_rx() later uses it without checking. Add such check... Reported-by: Yasushi SHOJI <yashi@atmark-techno.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-12-03 This series contains updates to ixgbe, i40e/i40evf, MAINTAINERS and e100.txt Alex provides a fix for ixgbe where enabling SR-IOV and then bringing the interface up was resulting in the PF MAC addresses getting into a bad state. The workaround for this issue is to bring up the interface first and then enable SR-IOV as this will trigger the reset in the existing code. I clean up legacy license stuff in the e100.txt documentation and then update the maintainers/reviewers list for our drivers. Jesse fixes an issue with the i40e/i40evf drivers, where if the driver were to happen to have a mutex held while the i40e_init_adminq() call was called, the init_adminq might inadvertently call mutex_init on a lock that was held which is a violation of the calling semantices. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04atl1c: Improve driver not to do order 4 GFP_ATOMIC allocationPavel Machek
atl1c driver is doing order-4 allocation with GFP_ATOMIC priority. That often breaks networking after resume. Switch to GFP_KERNEL. Still not ideal, but should be significantly better. atl1c_setup_ring_resources() is called from .open() function, and already uses GFP_KERNEL, so this change is safe. Signed-off-by: Pavel Machek <pavel@ucw.cz> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net: mvpp2: fix refilling BM pools in RX pathMarcin Wojtas
In hitherto code in case of RX buffer allocation error during refill, original buffer is pushed to the network stack, but the amount of available buffer pointers in BM pool is decreased. This commit fixes the situation by moving refill call before skb_put(), and returning original buffer pointer to the pool in case of an error. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Cc: <stable@vger.kernel.org> # v3.18+ Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net: mvpp2: fix buffers' DMA handling on RX pathMarcin Wojtas
Each allocated buffer, whose pointer is put into BM pool is DMA-mapped. Hence it should be properly unmapped after usage or when removing buffers from pool. This commit fixes DMA handling on RX path by adding dma_unmap_single() in mvpp2_rx() and in mvpp2_bufs_free(). The latter function's argument number had to be increased for this purpose. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Cc: <stable@vger.kernel.org> # v3.18+ Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net: mvpp2: fix missing DMA region unmap in egress processingMarcin Wojtas
The Tx descriptor release code currently calls dma_unmap_single() and dev_kfree_skb_any() if the descriptor is associated with a non-NULL skb. This condition is true only for the last fragment of the packet. Since every descriptor's buffer is DMA-mapped it has to be properly unmapped. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Cc: <stable@vger.kernel.org> # v3.18+ Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net:hns: Add the init code to disable Hip06 "Hardware VLAN assist"Salil
This patch adds the initializzation code to disable the hardware vlan support for VLAN Tag stripping by default for now. Proper support of "hardware VLAN assitance" feature would soon come in the next coming patches. Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net:hns: Add support of ethtool TSO set option for Hip06 in HNSSalil
This patch adds the support of ethtool TSO option to support Hip06 SoC to HNS Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: lisheng <lisheng011@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net:hns: Add Hip06 "TSO(TCP Segment Offload)" support HNS DriverSalil
This patch adds the support of "TSO (TCP Segment Offload)" feature provided by the Hip06 ethernet hardware to the HNS ethernet driver. Enabling this feature would help offload the TCP Segmentation process to the Hip06 ethernet hardware. This eventually would help in saving precious cpu cycles. Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: lisheng <lisheng011@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net:hns: Add Hip06 "RSS(Receive Side Scaling)" support to HNS DriverSalil
This patch adds the support of "RSS (Receive Side Scaling)" feature provided by the Hip06 ethernet hardware to the HNS ethernet driver. This feature helps in distributing the different flows (mapped as hash by hardware using Toeplitz Hash) to different Queues asssociated with the processor cores. The mapping of flow-hash values to the different queues is stored in indirection table (which is per Packet- parse-Engine/PPE). This patch also provides the changes to re-program the (flow-hash<->Qid) mapping using the ethtool. Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Reviewed-by: Kenneth Lee <liguozhu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04net:hns: Add support of Hip06 SoC to the Hislicon Network SubsystemSalil
This patchset adds support of Hisilicon Hip06 SoC to the existing HNS ethernet driver. The changes in the driver are mainly due to changes in the DMA descriptor provided by the Hip06 ethernet hardware. These changes need to co-exist with already present Hip05 DMA descriptor and its operating functions. The decision to choose the correct type of DMA descriptor is taken dynamically depending upon the version of the hardware (i.e. V1/hip05 or V2/hip06, see already existing hisilicon-hns-nic.txt binding file for detailed description). other changes includes in SBM, DSAF and PPE modules as well. Changes affecting the driver related to the newly added ethernet hardware features in Hip06 would be added as separate patch over this and subsequent patches. Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: yankejian <yankejian@huawei.com> Signed-off-by: huangdaode <huangdaode@hisilicon.com> Signed-off-by: lipeng <lipeng321@huawei.com> Signed-off-by: lisheng <lisheng011@huawei.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/renesas/ravb_main.c kernel/bpf/syscall.c net/ipv4/ipmr.c All three conflicts were cases of overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "A lot of Thanksgiving turkey leftovers accumulated, here goes: 1) Fix bluetooth l2cap_chan object leak, from Johan Hedberg. 2) IDs for some new iwlwifi chips, from Oren Givon. 3) Fix rtlwifi lockups on boot, from Larry Finger. 4) Fix memory leak in fm10k, from Stephen Hemminger. 5) We have a route leak in the ipv6 tunnel infrastructure, fix from Paolo Abeni. 6) Fix buffer pointer handling in arm64 bpf JIT,f rom Zi Shen Lim. 7) Wrong lockdep annotations in tcp md5 support, fix from Eric Dumazet. 8) Work around some middle boxes which prevent proper handling of TCP Fast Open, from Yuchung Cheng. 9) TCP repair can do huge kmalloc() requests, build paged SKBs instead. From Eric Dumazet. 10) Fix msg_controllen overflow in scm_detach_fds, from Daniel Borkmann. 11) Fix device leaks on ipmr table destruction in ipv4 and ipv6, from Nikolay Aleksandrov. 12) Fix use after free in epoll with AF_UNIX sockets, from Rainer Weikusat. 13) Fix double free in VRF code, from Nikolay Aleksandrov. 14) Fix skb leaks on socket receive queue in tipc, from Ying Xue. 15) Fix ifup/ifdown crach in xgene driver, from Iyappan Subramanian. 16) Fix clearing of persistent array maps in bpf, from Daniel Borkmann. 17) In TCP, for the cross-SYN case, we don't initialize tp->copied_seq early enough. From Eric Dumazet. 18) Fix out of bounds accesses in bpf array implementation when updating elements, from Daniel Borkmann. 19) Fill gaps in RCU protection of np->opt in ipv6 stack, from Eric Dumazet. 20) When dumping proxy neigh entries, we have to accomodate NULL device pointers properly, from Konstantin Khlebnikov. 21) SCTP doesn't release all ipv6 socket resources properly, fix from Eric Dumazet. 22) Prevent underflows of sch->q.qlen for multiqueue packet schedulers, also from Eric Dumazet. 23) Fix MAC and unicast list handling in bnxt_en driver, from Jeffrey Huang and Michael Chan. 24) Don't actively scan radar channels, from Antonio Quartulli" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (110 commits) net: phy: reset only targeted phy bnxt_en: Setup uc_list mac filters after resetting the chip. bnxt_en: enforce proper storing of MAC address bnxt_en: Fixed incorrect implementation of ndo_set_mac_address net: lpc_eth: remove irq > NR_IRQS check from probe() net_sched: fix qdisc_tree_decrease_qlen() races openvswitch: fix hangup on vxlan/gre/geneve device deletion ipv4: igmp: Allow removing groups from a removed interface ipv6: sctp: implement sctp_v6_destroy_sock() arm64: bpf: add 'store immediate' instruction ipv6: kill sk_dst_lock ipv6: sctp: add rcu protection around np->opt net/neighbour: fix crash at dumping device-agnostic proxy entries sctp: use GFP_USER for user-controlled kmalloc sctp: convert sack_needed and sack_generation to bits ipv6: add complete rcu protection around np->opt bpf: fix allocation warnings in bpf maps and integer overflow mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0 net: mvneta: enable setting custom TX IP checksum limit net: mvneta: fix error path for building skb ...
2015-12-03i40e/i40evf: avoid mutex re-initJesse Brandeburg
If the driver were to happen to have a mutex held while the i40e_init_adminq call was called, the init_adminq might inadvertently call mutex_init on a lock that was held which is a violation of the calling semantics. Fix this by avoiding adminq.c code allocating/freeing this memory, and then do the same work only once in probe/remove. Testing Hints (Required if no HSD): for VF, load i40evf in bare metal and echo 32 > sriov_numvfs; echo 0 > sriov_numvfs in a loop. Yes this is a horrible thing to do. Change-ID: Ida263c51b34e195252179e7e5e400d73a99be7a2 Reported-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-03ixgbe: Reset interface after enabling SR-IOVAlexander Duyck
Enabling SR-IOV and then bringing the interface up was resulting in the PF MAC addresses getting into a bad state. Specifically the MAC address was enabled for both VF 0 and the PF. This resulted in some odd behaviors such as VF 0 receiving a copy of the PFs traffic, which in turn enables the ability for VF 0 to spoof the PF. A workaround for this issue appears to be to bring up the interface first and then enable SR-IOV as this way the reset is then triggered in the existing code. In order to correct this I have added a change to ixgbe_setup_tc where if the interface is down we still will at least call ixgbe_reset so that the MAC addresses for the device are reset to the correct pools. Steps to reproduce issue: modprobe ixgbe echo 7 > /sys/bus/pci/devices/0000\:01\:00.1/sriov_numvfs ifconfig enp1s0f1 up ethregs -s 1:00.1 | grep MPSAR | grep -v 00000000 Result: MPSAR[0] 00000081 MPSAR[254] 00000001 Expected Result, behavior after patch: MPSAR[0] 00000080 MPSAR[254] 00000080 Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Tested-by: Darin Miller <darin.j.miller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-03mlxsw: core: Change BUG to WARN in hwmon codeJiri Pirko
Better to just warn the user that something really odd is going on and continue to run. Suggested-by: Or Gerlitz <gerlitz.or@gmail.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03stmmac: ipq806x: Return error values instead of pointersStephen Boyd
Typically we return error pointers when we want to use those pointers in the non-error case, but this function is just returning error pointers or NULL for success. Change the style to plain int to follow normal kernel coding styles. Cc: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03mvneta: implement ethtool autonegotiation controlStas Sergeev
This patch allows to do ethtool -s eth0 autoneg off ethtool -s eth0 autoneg on to disable or enable autonegotiation at run-time. Without that functionality, the only way to control the autonegotiation is to modify the device tree. This is needed if you plan to use the same kernel with different ethernet switches, the ones that support the in-band status and the ones that not. CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03mvneta: consolidate autoneg enablingStas Sergeev
This moves autoneg-related bit manipulations to the single place. CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03net: mv643xx: Use platform_register/unregister_drivers()Thierry Reding
These new helpers simplify implementing multi-driver modules and properly handle failure to register one driver by unregistering all previously registered drivers. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>